PbS and PbSe Infrared Detectors

20 Feb 2018

LASER COMPONENTS is a world leading manufacturer of PbS and PbSe infrared detectors.

From our research and production facility in Arizona we supply customers all over the world

with these industrial grade thermal detectors.

These detectors work on the principle that photons incident on the Polycrystalline thin fi lm

promote electrons across the bandgap increasing the conductivity of the material, in turn

decreasing the resistance of the substance. The Polycrystalline lead sulphide (PbS) units

detect radiation in the wavelength range between 1 and 3.3 microns and exhibit a higher

sensitivity than Polycrystalline lead selenide (PbSe) which can detect radiation between 1

and 5.2 microns.

The devices are manufactured in standard TO style packages and have long expected lifetimes

making them ideal for fi t and forget applications such as gas sensing, surface inspection

and identifying the presence of a fl ame. The PB27 is a collection of thermo-electrically

cooled Polycrystalline biased single element PbS detectors with a 20% cut off at 3.3 microns

and a maximum element size of 3 x 3 mm2.

More Information https://www.lasercomponents.com/uk/ir-components/ir-detectors/pbs-and-pbse-detectors/